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Equities database-query problem

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    Equities database-query problem

    I have a set comprised of 3 databases. One database is called stocks and is comprised of all stock symbols since March of this year, the second is a summary database that looks for first, last, maximum, minumum and average for all the stocks' closing prices, volumes and dates during this period. The 3rd is a simple symbol, name, market (NYSE) database.

    The top of the set order is the summary database of one of the three. I do a query on the summary database that pulls up records but seems to miss others even though they fit all the query's criteria and are about the same as the records successfully pulled. The main database "Stocks" is about 620meg, the summary database about 3meg. I'm running an Athlon 1333 with 256m of ram on a Raid0 - dual 20 gig ata 100 hd with Win2k svp 1. Could this be a resource issue? Thanks in advance.
    Rog

    #2
    RE: Equities database-query problem

    Hi Roger,

    It is unlikely to be a resource problem due to the fact that the size of your database is limited only to what space you have on your drive. You would notice if things were getting tight as the whole lot would slow down somewhat.

    There are some limitations on how many tables per set and only approx 19600 bytes per record but unless you have a lot of the data going into a single record via a 1-many setup I doubt this is your problem.

    I take it up to know everything was ok? (as usual)

    It may be that something in the database design may be causing the limitation or loose of selection.

    If the database is not to big (without any data) zipped 2.5mb or less if you want I can have a look for you.

    If so my email is - [email protected]

    Mike Lyon

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      #3
      RE: Equities database-query problem

      Mike please excuse my absolute stupidity, there was in fact a part of the query that wasn't being fulfilled. I glanced at the data. it was so close but in this case the volume was slightly too low for it to pass muster.

      Please accept my thanks for taking time out for me, and my apologies for wasting it. Burned a little too much wick trying to sort this project out.

      Thanks again.

      Sincerely;
      Rog

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